Agriculture Reference
In-Depth Information
Fig 5.4 Blood disease showing dark discolouration.
Fig 5.5 Cut bunch stem with bacterial ooze.
Importance
Neither Moko nor the BDB occurs in Australia. These
diseases are a serious quarantine threat to the Australian
banana industry.
What to do if you suspect Ralstonia bacterial wilt
This pathogen is a biosecurity risk to Australia. Any
suspected affected plants should be reported to the
nearest Department of Primary Industries or the Plant
Health Australia hotline (1800 084 881).
XANTHOMONAS BACTERIAL WILT - BIOSECURITY THREAT
Cause
Xanthomonas vasicola
pv.
musacearum
.
Symptoms
The disease causes yellowing, wilting and necrosis of
leaves, buds and f flowers. Fruit ripen unevenly, with
internal vascular discolouration. Cut surfaces ooze
bright yellow bacteria, and eventually the plant dies.
Source of infection and spread
The disease spreads with contaminated plant sources,
soil, water, insects, cultivation and harvesting
equipment.
Fig 5.6 Xanthomonas bacterial wilt showing tree symptoms.
